forked from OSchip/llvm-project
349 lines
10 KiB
C++
349 lines
10 KiB
C++
//===-- SymbolVendor.mm -----------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Symbol/SymbolVendor.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Core/Module.h"
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#include "lldb/Core/PluginManager.h"
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#include "lldb/Symbol/ObjectFile.h"
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#include "lldb/Symbol/SymbolFile.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// FindPlugin
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//
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// Platforms can register a callback to use when creating symbol
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// vendors to allow for complex debug information file setups, and to
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// also allow for finding separate debug information files.
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//----------------------------------------------------------------------
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SymbolVendor*
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SymbolVendor::FindPlugin (Module* module)
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{
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std::auto_ptr<SymbolVendor> instance_ap;
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//----------------------------------------------------------------------
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// We currently only have one debug symbol parser...
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//----------------------------------------------------------------------
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SymbolVendorCreateInstance create_callback;
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for (uint32_t idx = 0; (create_callback = PluginManager::GetSymbolVendorCreateCallbackAtIndex(idx)) != NULL; ++idx)
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{
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instance_ap.reset(create_callback(module));
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if (instance_ap.get())
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{
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// TODO: make sure this symbol vendor is what we want. We
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// currently are just returning the first one we find, but
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// we may want to call this function only when we have our
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// main executable module and then give all symbol vendor
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// plug-ins a chance to compete for who wins.
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return instance_ap.release();
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}
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}
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// The default implementation just tries to create debug information using the
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// file representation for the module.
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instance_ap.reset(new SymbolVendor(module));
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if (instance_ap.get())
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instance_ap->AddSymbolFileRepresendation(module->GetObjectFile());
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return instance_ap.release();
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}
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//----------------------------------------------------------------------
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// SymbolVendor constructor
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//----------------------------------------------------------------------
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SymbolVendor::SymbolVendor(Module *module) :
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ModuleChild(module),
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m_mutex (Mutex::eMutexTypeRecursive),
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m_type_list(),
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m_compile_units(),
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m_sym_file_ap()
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{
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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SymbolVendor::~SymbolVendor()
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{
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}
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//----------------------------------------------------------------------
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// Add a represantion given an object file.
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//----------------------------------------------------------------------
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void
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SymbolVendor::AddSymbolFileRepresendation(ObjectFile *obj_file)
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{
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Mutex::Locker locker(m_mutex);
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if (obj_file != NULL)
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m_sym_file_ap.reset(SymbolFile::FindPlugin(obj_file));
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}
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bool
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SymbolVendor::SetCompileUnitAtIndex (CompUnitSP& cu, uint32_t idx)
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{
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Mutex::Locker locker(m_mutex);
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const uint32_t num_compile_units = GetNumCompileUnits();
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if (idx < num_compile_units)
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{
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// Fire off an assertion if this compile unit already exists for now.
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// The partial parsing should take care of only setting the compile
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// unit once, so if this assertion fails, we need to make sure that
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// we don't have a race condition, or have a second parse of the same
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// compile unit.
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assert(m_compile_units[idx].get() == NULL);
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m_compile_units[idx] = cu;
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return true;
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}
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return false;
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}
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uint32_t
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SymbolVendor::GetNumCompileUnits()
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{
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Mutex::Locker locker(m_mutex);
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if (m_compile_units.empty())
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{
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if (m_sym_file_ap.get())
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{
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// Resize our array of compile unit shared pointers -- which will
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// each remain NULL until someone asks for the actual compile unit
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// information. When this happens, the symbol file will be asked
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// to parse this compile unit information.
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m_compile_units.resize(m_sym_file_ap->GetNumCompileUnits());
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}
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}
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return m_compile_units.size();
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}
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size_t
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SymbolVendor::ParseCompileUnitFunctions (const SymbolContext &sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseCompileUnitFunctions(sc);
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return 0;
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}
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bool
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SymbolVendor::ParseCompileUnitLineTable (const SymbolContext &sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseCompileUnitLineTable(sc);
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return false;
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}
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bool
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SymbolVendor::ParseCompileUnitSupportFiles (const SymbolContext& sc, FileSpecList& support_files)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseCompileUnitSupportFiles(sc, support_files);
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return false;
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}
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size_t
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SymbolVendor::ParseFunctionBlocks (const SymbolContext &sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseFunctionBlocks(sc);
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return 0;
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}
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size_t
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SymbolVendor::ParseTypes (const SymbolContext &sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseTypes(sc);
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return 0;
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}
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size_t
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SymbolVendor::ParseVariablesForContext (const SymbolContext& sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ParseVariablesForContext(sc);
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return 0;
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}
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Type*
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SymbolVendor::ResolveTypeUID(lldb::user_id_t type_uid)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ResolveTypeUID(type_uid);
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return NULL;
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}
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uint32_t
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SymbolVendor::ResolveSymbolContext (const Address& so_addr, uint32_t resolve_scope, SymbolContext& sc)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ResolveSymbolContext(so_addr, resolve_scope, sc);
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return 0;
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}
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uint32_t
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SymbolVendor::ResolveSymbolContext (const FileSpec& file_spec, uint32_t line, bool check_inlines, uint32_t resolve_scope, SymbolContextList& sc_list)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->ResolveSymbolContext(file_spec, line, check_inlines, resolve_scope, sc_list);
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return 0;
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}
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uint32_t
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SymbolVendor::FindGlobalVariables (const ConstString &name, bool append, uint32_t max_matches, VariableList& variables)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->FindGlobalVariables(name, append, max_matches, variables);
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return 0;
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}
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uint32_t
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SymbolVendor::FindGlobalVariables (const RegularExpression& regex, bool append, uint32_t max_matches, VariableList& variables)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->FindGlobalVariables(regex, append, max_matches, variables);
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return 0;
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}
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uint32_t
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SymbolVendor::FindFunctions(const ConstString &name, uint32_t name_type_mask, bool append, SymbolContextList& sc_list)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->FindFunctions(name, name_type_mask, append, sc_list);
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return 0;
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}
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uint32_t
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SymbolVendor::FindFunctions(const RegularExpression& regex, bool append, SymbolContextList& sc_list)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->FindFunctions(regex, append, sc_list);
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return 0;
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}
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uint32_t
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SymbolVendor::FindTypes (const SymbolContext& sc, const ConstString &name, bool append, uint32_t max_matches, TypeList& types)
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{
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Mutex::Locker locker(m_mutex);
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if (m_sym_file_ap.get())
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return m_sym_file_ap->FindTypes(sc, name, append, max_matches, types);
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if (!append)
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types.Clear();
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return 0;
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}
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ClangNamespaceDecl
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SymbolVendor::FindNamespace(const SymbolContext& sc, const ConstString &name)
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{
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Mutex::Locker locker(m_mutex);
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ClangNamespaceDecl namespace_decl;
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if (m_sym_file_ap.get())
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namespace_decl = m_sym_file_ap->FindNamespace (sc, name);
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return namespace_decl;
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}
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void
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SymbolVendor::Dump(Stream *s)
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{
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Mutex::Locker locker(m_mutex);
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bool show_context = false;
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s->Printf("%.*p: ", (int)sizeof(void*) * 2, this);
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s->Indent();
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s->PutCString("SymbolVendor");
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if (m_sym_file_ap.get())
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{
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ObjectFile *objfile = m_sym_file_ap->GetObjectFile();
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if (objfile)
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{
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const FileSpec &objfile_file_spec = objfile->GetFileSpec();
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if (objfile_file_spec)
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{
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s->PutCString(" (");
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objfile_file_spec.Dump(s);
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s->PutChar(')');
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}
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}
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}
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s->EOL();
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s->IndentMore();
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m_type_list.Dump(s, show_context);
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CompileUnitConstIter cu_pos, cu_end;
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cu_end = m_compile_units.end();
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for (cu_pos = m_compile_units.begin(); cu_pos != cu_end; ++cu_pos)
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{
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// We currently only dump the compile units that have been parsed
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if (cu_pos->get())
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(*cu_pos)->Dump(s, show_context);
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}
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s->IndentLess();
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}
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CompUnitSP
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SymbolVendor::GetCompileUnitAtIndex(uint32_t idx)
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{
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Mutex::Locker locker(m_mutex);
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CompUnitSP cu_sp;
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const uint32_t num_compile_units = GetNumCompileUnits();
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if (idx < num_compile_units)
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{
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cu_sp = m_compile_units[idx];
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if (cu_sp.get() == NULL)
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{
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m_compile_units[idx] = m_sym_file_ap->ParseCompileUnitAtIndex(idx);
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cu_sp = m_compile_units[idx];
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}
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}
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return cu_sp;
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}
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//------------------------------------------------------------------
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// PluginInterface protocol
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//------------------------------------------------------------------
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const char *
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SymbolVendor::GetPluginName()
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{
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return "SymbolVendor";
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}
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const char *
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SymbolVendor::GetShortPluginName()
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{
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return "vendor-default";
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}
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uint32_t
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SymbolVendor::GetPluginVersion()
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{
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return 1;
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}
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